Stock-fitting machine



\ Fb. 12, 1924. 1,483,093 A. E. JOHNSON STOCK FITTING MACHINE FiledApril 2, 1919 2 Sheets-Sheet 1 I I n 12 4 A. E.- JOHNSON 093 swocxFITTING maxim:

Filed April ,2, 1919 2 W 2 nibless v0 Patented Feb. 12, 1924.

UNITED STATES ALBERT E. JOHNSON, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TOUNITED SHOE MA- v PATENT OFFICE.

CHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

STOCK-FITTING MACHINE.

Application filed April 2,

1 '0 all whom it may concern.

Be it known that I, ALBERT E. J OHNSON,

a citizen of the United States, residing at Beverly, in the county ofEssex and State of Massachusetts, have invented certain new and usefulImprovements in Stoc z-Fitting Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to stock fitting machines and more particularlyto such machines for performing some of the operations required to'fitthemarginal portion of boot and shoe soles.

In fitting insoles and turn soles for assembly with the upper it isrequisite that the marginal lip, forming the sewing rib, be raised fromits position against the face of the insole; and when the sole is to bereinforced the lip is raised to and set in an upstanding posltion topermit a proper application of the reinforcing material in the anglebetween the lip and face of the sole. In performing the operations ofpreparing the lip in the manner described and thereafterapplying-reinforcing material, it has been found to be advantageous toemploy machines of the general type shown in my prior Letters Patent ofthe United States Nos. 1,218,770, January 23, 1917; 1,217,455 and 1,217,456, February 27, 1917; and 1,218,- 561, March 6, 1917, since it hasbeen demonstrated that this type of machine handles the sole rapidly,accurately and economically.

Theohject of the present invention is to improve the construction andmode of operation of machines of the general type of those referred to,having particular reference to the setting of lips on pointed-toesoles.'

In accordance with this object a feature of the invention relates to animproved sole feeding mechanism which provides a positive rotation ofthe support for holding the sole in position for the operation thereonof the lip setting or other tools acting on its margin and which is sodesigned that inequalities in the thickness of the sole will not cause aloss of function. Another feature, which relates more particularly tooperations upon pointed-toe soles, contem- 1919. Serial No. 287,009.

plates the provision of a special tool for operating at the inside ofthe lip having a novel mounting in the frame. A third feature relates toimproved mechanism for enabling the inside tool, of a pair of lipsetting tools, to maintain its position under the lip when crossing theslit made in the lip of a pointed-toe insole, and sometimes others, toinsure that the entire length of the lip will be raised and set in theposition desired.

To the accomplishment of the object stated and such others as mayhereinafter appear, as will be readily understood by those skilled inthe art from the following description, the invention comprises thefeatures and combinations of parts hereinafter described andparticularly pointed out in the appended claims.

The preferred form of the invention is illustrated in the accompanyingdrawings, in which:

Figure 1 is a front elevation of the head of the machine;

Fig. 2 is an enlarged detail in front elevation of theoperatinginstrumentalities;

Fig. 3 is a detail view showing the position of the inner lip engagingtools after the lip on a pointed-toe sole has been set approximately onehalf of the way round the sole, and after the sole has been swung tobring the portion of the lip which has been set above the setting tools;

Fig. 1 is a left end elevation of the head of the machine;

Fig. 5 is a vertical sectional view of the operating instrumentalities;

Fig. 6 is a. sectional view taken on the line 66 of Fig. 5; and

Fig. 7 is an end view of the pressing and supporting roll showing thefeeding teeth on its face.

The machine in its illustrated embodiment performs a lip raising andsetting operation upon a double lipped sole, like the machine disclosedin my prior Patent No. 1,213,770, dated January 23, 1917. The present machine is provided with two gn'essure or lip setting rolls 10 and 12 thatrespectively engage the inner and outer lips of a sole as the lips arefed between them. These rolls are driven at the same surface speed andthe roll 12 is carriedby the mainsha ft 14 of the machine. Theroll 10 isurgedtoward the roll 12 by means of a coiled spring 16 that acts onthefree end of its supporting arm or carrier 18, which is pivoted at 20on the machine frame. The lips of the sole are raised in advance oftheir engagement by the pressure rolls 10 and 12 by means of lip turningtools or plows 22 and 24, which respectively act on the inner and outerlips of a double lipped sole. The sole is held in position with its lipsbetween the pressure rolls, by means of a work positioning roll 26 whichengages the unlipped face of the sole as shown in Fig. 5. This roll 26is mounted upon the free end of an arm 28 which is pivoted at 30 011 theframe of the machine and 1s urged in a direction to maintain the roll 26in yielding engagement with the unlipped face of the sole by a torsionspring 32 (Fig. 2) connected to the arm 28 by a link 34:. The workpositioning roll 26 and the pressure roll 10 are adapted to be swung outof operative engagement with the sole by means of a foot treadlemechanism (not shown) at the base of the machine, which mechanism isconnected to a rock-shaft 36 (Fig. 1) journaled in the machine frame,through a treadle rod 38 and an arm 40 secured to said rock-shaft. Therock-shaft is operatively connected to the arm 28 to move the roll 26away from the sole against the action of the spring 32, by means ofan-arm 42 secured to .the rock-shaft 36 and provided at its free endwith a pivoted block 44, which is engaged by a yoke 46 on the end of anarm 48 integral with the positioning roll arm 28. The rock-shaft 36 isoperatively connected to the carrier 18, on which the pressure roll 10is mounted, by means of an-arm 50 secured to the rock-shaft, the end of:which arm engages the lower end of a foot 52vsecured to said carrier 18.

The parts above described have the same general construction and mode ofoperation, except as hereinafter described. as in the machine disclosedin said Patent No. 1,213,770, to which reference may be had for a moredetailed description.

In the illustrated machine the pressure roll 10 which engages the innerlip is cylindrical and of relatively small diameter so as to enable itto engage the lip at its extreme tip on the most pointed-toe soledesired to be operated upon. It is requisite that the surface speeds ofthe rolls 10 and 12 be the same in order to feed the sole steadily, butthe small diameterof the roll 10 requires a. more complicated drivingtrain than is used in said patented machines. Furthermore any change inthe diameter of the roll requires a corresponding change in the drivingmechanism. In order to provide for a rapid substitution of rolls ofvarying sizes, the roll 10 is so mounted that both it and its drivingmechanism can be bodily ren'ioved without dismantling the machinev Tothis end the roll is formed on one end of a stud shaft 54 (Fig. 5) whichextends through and is journaled in a hanger 56 sustained by the carrier18. The stud-shaft 54 is driven to rotate the roll 10 at the samesurface speed as the roll 12 by means of a gear 58 on the inner end of acounter-shaft 60 which meshes with one member of a step gear 57, looselymounted on a pin 59 threaded in the bracket 68 hereinafter described,the other member of which meshes with a gear 61 on the stud-shaft 54.The stud-shaft 54 is retained in the hanger 56 by n'ieans of the gear 61on its rear end and a collar 58 on its forward end at the rear of theroll 10. The counter-shaft 60 is journaled in the carrier 18 (Fig. 1)and is driven by a spur gear 62, fixed to its rear end below the pivot20 of said. carrier, which meshes with a spur gear 63 carried by themain shaft 1 1.

In order to enable the lips of a pointedtoe sole to be properly raisedand set, it is desirable in fitting the sole to make a V- shaped cut atthe tip of the outer lip and a transverse slit 6 at the tip of the innerlip (Fig. A machine for performing this operation is disclosed inLetters Patent of the United States to John B. Hadaway, No. 1,087,578,dated February 17, 1914.

On account of therestricted area at the tip of a pointed-toe sole,considerable difficulty has. been experienced in properly raising andsetting a marginal lip which is cut downwardly and outwardly. Thisdifiiculty has been overcome in the machine of the present invention byconstructing and arranging the pressure roll 10 and plow 22 which engagesuch a lip, in such manner that they are capable of acting to theextreme end of the portion of the lip on one side of the slit at the tipof the toe, without engaging the remaining portion of the lip. Justbefore the sole is to be swung into the position shown in Fig. 3, theinside plow and roll are lifted slightly above the supporting roll 12 toplace them in a position to ensure an engagement of the plow beneath theextreme end of the portion of the lip on the other side of the slit atthe tip of the toe. when the sole is again fed forward.

Fig. 3 shows a sole after it has been swung with the plow 22 and roll 10at the extreme end of the half of the inner lip first acted upon. thatis to say, along one side of the sole. in which position the plowslightly overlies the end of the unset half of the lip along theopposite side of the $016. This is the condition which the presentinvention aims to overcome. Obviously if the sole is fed forward withthe tools in the position shown in Fig. 3, the plow would ride on top ofthe lip and since the setting roll follows the plow the second half ofthe lip would not be raised... Means is therefore actuated sufficientlyto effect the raising of the plow 22 and pressure roll 10 the requiredamount to clear the end of the second half of the lip formed by the slitb-without retracting the positioning roll. This raised position isindicated by dotted lines on-Fig- 3, it being understood thatbefore theturn is made the treadle is depressed to raise the roll 10, the sole isswung while the roll is raised and then just before the" solerecommences its advance the treadle' is released thus dropping thepressure roll to its normal position with relation to the supportingroll 12, during which downward movement the plow 22 passes beneath thelip end, that is, into the channel and between the lip and the body ofthe sole. It will be observed that the provision for loose play betweenthe lever arms 42 and 48 enables the positioning roll spring 32 toremain active during this period and therefore the lip is continuallyheld firmly in position to be properly acted upon. 7

In order to adjust the pressure roll 10 longitudinallly relativelyto theplow 24 and the positioning roll 26, the'hanger 56 which supports theroll is adjustably mounted, being provided at its upper end with a guideway 64, (Figs. 4 and 5) which is in'sliding engagement with a.horizontal guide bar 66 forming a part of a bracket 68 secured to thecarrier 18 by screws as shown in Figs. 2 and 4. The hanger is held inadjusted position on said guide bar by set screws 7 2. Preferably thehanger 56 is split and held together by a binding screw 70 thusproviding for ready removal of the shaft 54 carrying the pressure roll10.

The plow 22 is adapted to be adjusted relatively to the p low: 24 andthe positioning roll 26 and may be secured in adjusted position by meansof a cap screw 74 which extends through a slot in a horizontal portionof the shank of the plow and is threaded into the guide bar 66. The plow24 is similarly adjustable by means of a like mounting as shown in Fig.2. Attention is called to the particular shape of the shank of the plow22. As best shown in Figs. 2 and 5 this shank is bent or bowed inwardlyas at 23 to give space 'for the passage past of the raised portion ofthe lip when operating on the last half ofthe lip. Such a formation ofthe plow sha-nk is particularly useful when fitting the toe portidns'ofpointed-toe insoles because of the difiiculty of bending the raisedportion of the lip near the toe outward. In Fig. 5the section of thesole ison the line 5-5 of Fig. 3 illustrating the position of the toeportion of a sole in the machine after having been swung at the toe.

To assist in feeding the sole, the positioning roll 26 in theillustrated machine is driven at all times during the operation of themachine. To this end, said positioning roll is journaled on a stud 78(Fig. 5) which is secured by a-set screw 80 to the pivoted arm-28, andsaid roll carries a bevel gear 82 which meshes with and is rotated by abevel gear 84. The gear 84 is carried by a stud-shaft 86, the outer endof which is supported by being seated in asocket 88 in the arm 28. Theinner end of the stud-shaft 86 issupported and guided by a collar 90formed thereon which works 1n a sleeve 92 threaded into an axial bore.in the pressure roll 12. The stud-shaft86 is continuously driven by theengagement of a flat sided tapering tongue or key 94, formed on theinner end thereof, with a transverse slot 96 in the closed inner end 98of the sleeve 92.

The bevel gear 84 ismaintained in mesh with the bevel gear 82,irrespective of any movement of the work positioning roll due toinequalities in sole thickness by means of a spring 100 coiled about thestud-shaft 86 and bearing between the gear 84 and a loose washer 101which engages the outer flanged end 102 of the sleeve 92. The taperingkey .94 is of {sufficient length to be maintained in operativeengagement with the slot 96 irrespective of the movement of the workpositioning roll arm 28 while the work is clamped, and is suflicien-tlyloose in the slot to allow for the necessary angular movement of thestud-shaft as the work positioning roll arm is swung outwardly on itspivot. However, the key 94 may be withdrawn from slot 96 as the arm 28is retracted at the time that another sole is to be substituted in themachine so that the roll 26 will not be driven while such substitutionis being made.

Sometimes, as when the stock is soft and spongy, the regular feed rollswill slip and it is therefore desirable to so design the feed mechanismthat all kinds of stock may successfully be fed through the'l'nachine.Consequently the flange 102 of. the sleeve 92 is provided with shortradial teeth 104 which will bite into the feather of the insole andobtain a feeding grip thereon whatever the nature of the stock. It isnot intended to utilize the entire length of the teeth in feedingbecause this would cause a drag on the 102, that only the extreme outerends of the feed teeth cooperate with said roll to bite deeply andeffectively into the feather of the sole. 1

An inspection of Fig. 4 will show that the hanger 56 is so designed thatthe bearing for the stud-shaft 54 is to the left of the center of therolls 12 and 26. This throws the roll 10 slightly 'to the rear, in theline of feed, of the other rolls; and therefore gives better opportunityfor manipulating said roll, in the manner hereinbefore described, justbefore and after the sole 'is swung at thetoe. a

The nature and scope of the invention having been indicated and amachine embodying several features of the invention in their preferredform having been specifically described, what is claimed as new, is :e

1. A machine for operating on lipped soles having, in combination, apair of pressure rolls. to bear on the inner and outer sides of the lip,a work positioning member to bear on the unlipped face of the sole, andcontrollable means for moving the roll at the inner side of the liptoward and from the lip independently of the other roll and saidpositioning member.

2. A machine for operating on lipped soles having, in combination, apair of pressure rolls to bear on opposite sides of the lip, a toolassociated with one of the rolls to turn up the lip in advance of therolls, a

work positioning member to bear on the unlipped ;face of the sole, andcontrollable means for moving said tool associated with one of the rollstoward and from the lip and independently of the other roll and while,said positioning member remains in active position.

3. A machine for operating on a double lipped sole having, incombination, a pair j soles hav1ng,:1n combination, a frame, a

of pressure rolls, one for the inner lip and the other for the outerlip, a work positioning member to bear on the unlipped face of the sole,a tool for turning up the inner lip in advance of the rolls, and meansfor mov ing the tool and the roll for the inner lip toward and from theinner lip independently of the'other roll and said work positioningmember. I a

4:. A machine for operating on a double lipped sole having, incombination, a cylindrical roll to bear on the outer lip, atool mountedthereon to bear on one side, of the .lip, a roll to bear on the otherside of the lip, a feed roll movable toward and from the sole andmounted with its axis substantially perpendicular to the axis of saidshaft and arranged to bear on the unlipped face of the sole with itsperipheral surface, and means carried by said shaft for rotating thefeed roll irrespective of the movement thereoftoward and from the sole.

6. A machine for operating on lipped soles having, in combination, ashaft, a roll mounted thereon to bear on one side of the lip, a roll tobear on the other side of the lip, a feed roll to bear on theunlippedface of the sole, movable toward and from the sole,,means including agear axially movable onsaid shaft in mesh with a gear secured to saidfeed roll for'rotatingsaid feed roll, and means to maintain the gears inmesh irrespective of the movement of the feed roll. a

7. A machine for operating on lippedsoles, havmg, in combination, twoparallel shafts, each carrying a pressure roll at one end to act onopposite sides of the lip, a rotary in an arc toward andfromsaid rolls,and

means including a driving member carried by said shaft for driving thefeed roll irresppctive of its position relative to said other r0 1.

9. A machine for operating on lipped shaft j ournaled therein, a rollcarried by one end of the shaft to bear on one side of the hp, an armivoted on the frame, a parallel ,counter-sha t journaled therein, meansfor rotating said shaft-s one from the other, a stud-shaft mounted onsaid pivoted arm, a roll of relatively small diameter carried by thestud-shaft to bear on the other side of the lip, a driving mechanismbetween the stud-shaft and the counter-shaft for rotating the small rollat the same surface speed as the other roll.

10. A machine for operating on a sole having a marginal lip cutdownwardly and outwardly and slit transversely at the tip of the toehaving, in combination, a tool and a roll to act on said lip, a solesupport, means for relatively moving the sole and said lip engaginginstrumentalities to raise and set the portion of the lip on one side ofthe lip slit, and means for thereafter relatively manipulating thelipengaging instrumentalities and sole support to ensure an engagementof said instrumentalities beneath the portion of the lip on the otherside of the lip slit.

11. A machine for operating on a sole having a channel lip having, incombination, means for supportlng and feeding the sole with the lip heldin horizontal position, a tool for turning up the lip, and means formoving the tool vertically toward and from the lip while the supportingand feeding means remain active.

12. A machine for operating on lipped soles having, in combination,pressure devices to bear on opposite sides of the lip, a feed rollhaving a toothed end to engage the feather of the sole, and a workpositioning member to bear on the unlipped face of the sole and press itagainst said feed roll, said positioning member being so shaped withrelation to the plane of the toothed end of said feed roll as to leavethe major portion of the feather free therefrom and cause the teeth tobite into the sole most deeply and effectively near the periphery of thefeed roll.

13. A machin for operating on lipped soles having, in combination,pressure devices to bear on opposite sides of the lip, a tool forturning up the lip in advance of said devices, said tool having itsshank bent or bowed inwardly to clear an upstanding portion of the liplocated at the toe end while the tool is operating on the oppositeportion of the lip on the other side of the sole.

14L. A machine, for raising and setting in intimate contact the two lipsof a double lipped sole havin in combination, tools at the outer sides 0said lips having parallel pressing surfaces, a member for maintainingthe lips in position between said tools, means for moving said memberangularly toward and from said tools, and driving connections forrotating said member in any position it may assume.

15. A machine for setting the lip of a lipped insole having, incombination, a lip supporting roll of relatively large diameter, a lippressing roll of relatively small diameter, and means for mounting saidpressure roll in the rear, in the line of feed, of the center of saidsupporting roll.

16. A machine for operating on lipped insoles having, in combination,two parallel shafts, means for driving said shafts one from the other, alip pressing tool mounted on and driven directly from one shaft, and alip pressing tool driven indirectly from the other shaft.

'17. A machine for operating on lipped soles having, in combination, apair of pressure rolls tobear on opposite sides of the lip, a workpositioning member to bear on the unlipped face of the sole, and meansfor first moving one of the rolls away from the lip independently of theother roll and said positioning member and for thereafter moving bothsaid roll and said member simultaneously away from said other roll.

18. A machine for operating on a double lipped sole having, incombination, a cylindrical roll to bear on the outer lip and acylindrical roll of relatively small diameter to bear on the inner lipand co-operating to press the lips between their cylindrical surfaces, awork positioning member to bear on the unlipped face of the sole, andmeans for supporting said rolls having provision for relative adjustmentof said rolls longitudinally.

ALBERT E. JOHNSON.

